Engine breaks up after 7k?
Hey guys, I need some advice. When I ride, I typically keep it under 5k. However, over the last few days I have had the opportunity to open it up a little bit. I noticed right away that after about 6.5-7k the motor breaks up. It still accelerates, but does not sound healthy at all. I have no F1 light, plugs and air filters are less than 500 miles, oil has just been changed. I run high octane fuel only and only on occasions will I run a fuel additive such as Gumout Regain, or Seafoam. The bike does just fine when I am just cruising so it really isn't a big deal for me and my riding style, but if something is wrong I want to address it and fix it. Any ideas where to start? What tests I can run? I have a feeling it is a air/fuel issue but I do not have the equipment to test that at that RPM.